Impossible to downgrade DStv(MultiChoice) Package.

I have been trying to get hold of DStv(MultiChoice) for about 2 weeks without any results. None of their contact numbers are working, the WhatsApp chatbot is in a continuous loop and on the Self Service Application you can upgrade but NOT downgrade. I've just received a call from their Sales Office to offer me an upgrade (again!) and when I raised my query was told you can only downgrade on the 10th, 11th or 12th of the month. Believe me I tried on said dates and got absolutely nowhere. To resolve this issue and get rid of the Premium Package, dual view and other ******* loaded onto our account I have no alternative but to stop their payment completely. Netflix etc offers a far better Selection of Movies and Series than the endless repeats on all the DStv Channels. Annoying at it's best.